Method of dyeing warps



E. E. CARLSON ET AL METHOD OF DYEING WARPS Filed July 15, 1926 4 Sheets-Sheet I WITNESSES: NVENTORS:

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Oct. 25; 1927.

E. E CARLSON ET AL METHOD OF DYEIN G WARBS Filed July 15. 1925 4 Sheets-Sheet 2 4 a INVE NTORSQ Edpz-u 13. (amson bll gv'ezz-ee 11C aiead,

Oct. 25, 1927. 1,646,526

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Patented Oct. 25, 1927 UNITED STATES PATENT OFFICE.

Enwm E. GARLSON AND inwnnucr. A. STEAID, or CHESTER, rmmsnvmmmmnon or nxnme wAaPs.

Application filed July 15, 1926. Serial No. 122,525.

This invention relates to method of dyeing yarn 1n groups, commonly known as warps. Warps, as usually dyed, are passed around rollers and through the dye bath of a dyeing machine. As the warp is dyed the dye bath is gradually exhausted of its coloring matter and becomes a lighter shade. The result is that the Warp is dyed a non-uniform shade, the color at one end of the warp being of the proper shade and gradually becoming lighter toward the other end of the Warp which is of a noticeably lighter shade. The

yarn of this warp, when worked into a fab-v v had to the accompanying drawings in which Figure l is aschematic. plan view of apparatus for carrying our method into effect,

Figure 2 a front elevation of the apparatus shown in Figure 1, some of the parts being omitted,

Figure 3 an end. view of the apparatus looking from the right of Figure 2, and

showing the parts omitted in Figure 2,

Figure 4 a central section through a reel which may be used for carrying our method into effect, illustrating how the warp is wound thereon. I

Referring to the drawings, the apparatus includes a vat 1 for containing a dye bath,

a reel -2 which is removably mounted for rotation on the edges of the vat, a frame 3 for removably supporting the reel when winding a warp thereon for dying, a frame 4 for removably supporting the reel when unwinding the dyed warp therefrom, and hoisting mechanism 5 for raising, conveying "and lowering the reel from and I to vat 1,

frame 3 and frame 4. p

The reel may be of'the type disclosed in our application filed under even date, which has trunnions 6 rotatable in bearing blocks 7 ada ted to rest in recesses 8 in vat 1, frame 3' an frame 4. The warp wound on the reel is wound on spaced bars 9 removably mounted in 'rooves 10 in bar supports 11 mounted on flanges 12 of'the reel. The reel may be rotated by suitable'driving mechanism 13 operatively connected with vat 1,

' frame 3 and frame 4 respectively.

The hoisting mechanism includes a lifter 14 and a track 15 on which the lifter travels. The lifter is connected for raising the reel by attaching each pair of hooks 16 to the extending end of each bearing block 7 on the ends of the reel.

The warp to be dyed is brought to the frame 3 in trucks or other receptacles 17 and 1s passed over a guide roll 18 to the reel.

The dyed warp, when unwound from the reel, passes. between a pair of rolls 19 which squeeze the dye liquid out of the wet warp, into a receptacle 20 and then passes over a series of guide rolls 21 and through suitable folding mechanism 22 which folds the Warpas it fills receptacle 23.

In dyeing, the warp is first wound on a reel by passing it over guide roll 18 and tying or otherwise fastening the end to one of the bars 9 on the reel.\ The warp is then wound in spaced layers on the bars as shown inFigure 4 and as described in our co-pending application mentioned'above. It is-to. be understood that other types of reels may be used and the warp may be. wound on the reel'i'n any desired manner, so long as the warp is applied to a reel. After the warp iswound, the hoisting mechanism is' con-.

nected "for raising reel 2 from frame 3 and lowering 1t into vat 1, as indicated by the arrows'in Figure. 2. The reel is then rotated by driving mechanism 13 until the warp is dyed.

As the reel is rotated, the warp wound thereon will churn the dye liquor. and thus keep it thoroughly mixed and of uniform shade throughout The dye bath at the end of the dyeing period will be exhausted of some if its coloring matter and will be of a lighter shade. The lighter shade dye having the same effect on the entire warp, will dye the entire warp a uniform shade.

After dyeing, the hoisting mechanism is connected for raising the reel from the vat and lowering it onto framed: for unwinding the warp as indicated by the arrows in Fig ure 2.

In unwinding, the end of the warp is passed between rolls 19 which squeezeout the dye liquid from the wet warp into receptacle 20 and then passed over gulde rolls 21 and down through. the folding mechanism 22 into receptacle 23. The reel is then 1-16.

rotated and bars 9 removed as thespaced layers of warp are unwound from the reel.

The empty reelis then conveyed by the on the reel.

hoisting mechanism from'frame 4 to frame 3, as indicated by the arrows in Figure 2, where another warp may be wound thereon.

It may, in some cases, bedesirable to wind and unwindthe warp onto and from the reel at the frame 3 and use frame 4 merely as a support for the reel prior to hoisting and placing it in the vat to dye the warp. When this is desirable, the reel after dyeing is removed from the vat and placed on frame 3 where the dyed warp is rst unwound and then another warp wound .ing'a'fter the reel, in the vat is removed therefrom.

It is thus seen that dyein warp by this method permits the reels to e conveyed to and from the vat for winding and unwinding the warps, to suit different requirements. From actual use, we have found that warps may be quickly and uniformly dyed by unwinding a dyed warp from one reel and winding a fresh war on a second .reel. while a warp on the third reel is being dyed in the vat, thereby avoiding delays in waiting to perform one operation while another operation is being performed.

While we have described our invention with a particular apparatus, it will be understood that the various parts may be changed without departing from the spirit thereof, and hence we do not limit ourselves to the recise construction set forth, but 7 consider that we are at liberty to makeby Letters Patent is 2-- The reel after having the warp I the reel.

such changes and alterations as fairly come within the scope of the a pended claims.

" Having thus. describe our invention, what we claim as. new'and'desire to secure 1. A method of fdyeing warps consisting in applying the material to be dyedon a reel. inspaced layers, immers'mlg the reel in a dye bath, rotating .the'reel. ntil the material is dyed, removing'the reel from the dye I bath, and removing the warpfrom the reel.

2. A method of dyeing. warps consisting in applying the material to be dyed on a reel in spaced concentric layers, immersing the reel in a dye bath, 'rotatingthe reel until the material is dyed, removing the reel from thedye bath, and removing the warp from 3. A method .of ,dyeing'warps consistin in winding the material to be dyed on a reel in spaced concentric layers, immersing the reel in a, dye bath, rotating the reel until 'the material is dyed, removing the. reel from the dye bath, and unwinding the warp from the reel. I

4;. A method of' dyeing warps consisting in winding the material to be dyed on a reel, immersing the reel in a dye bath, rotating the reel until the material is dyed, removing the reel from the dye bath, unwinding the. warp from the reel, and conveying the unwound reel to a position for winding another warp thereon. I

In testimony whereof we have signed'our names to this specification.

EDWIN E. CARLSON. 1 LAWRENCE A. STEAD. 

